<script>
import {useCategoryStore} from '@/store/modules/category';
import {reactive, computed, ref} from 'vue'
import {findBrand} from '@/api/home'
import XtxSkeleton from '@/components/library/XtxSkeleton.vue';
import {storeToRefs} from 'pinia';

export default {
  name: 'HomeCategory',
  components: {XtxSkeleton},
  setup() {
    const brand = reactive({
      id: 'brand',
      name: '品牌',
      children: [{id: 'brand-children', name: '品牌推荐'}],
      brands: []
    })
    const categoryStore = useCategoryStore()
    const {list} = storeToRefs(categoryStore)
    const menuList = computed(() => {
      const newlist = list.value.map(item => {
        return {
          id: item.id,
          name: item.name,
          children: item.children && item.children.slice(0, 2),
          goods: item.goods
        }
      })
      newlist.push(brand)
      return newlist
    })
    // 获取分类逻辑
    const categoryId = ref(null)
    const currentCategory = computed(() => {
      return menuList.value.find(item => item.id === categoryId.value)
    })

    // findBrand().then(data=>{
    //     brand.brands = data.result
    //     console.log("this is brand",data.result);
    // })

    const Brand = async () => {
      const {data: {result}} = await findBrand()
      brand.brands = result.slice(0, 6)
      console.log("this is brand", result);
      // console.log(menuList);
    }
    Brand()

    return {
      menuList,
      categoryId,
      currentCategory,
    }
  }
}
</script>


<template>
  <div class='home-category' @mouseleave="categoryId = null">
    <ul class="menu">
      <li :class="{ active: categoryId&&categoryId === item.id }" v-for="item in menuList" :key="item.id"
          @mouseenter="categoryId = item.id">
        <router-link :to="`/category/${item.id}`">{{ item.name }}</router-link>
        <template v-if="item.children">
          <router-link v-for="sub in item.children" :key="sub.id" :to="`/category/sub/${sub.id}`">
            {{ sub.name }}
          </router-link>
        </template>
        <template v-else>
          <XtxSkeleton width="60px" height="18px" style="margin-right:5px" bg="rgba(255, 255, 255, 0.2)">
          </XtxSkeleton>
          <XtxSkeleton width="50px" height="18px" bg=" rgba(255, 255, 255, 0.2) ">
          </XtxSkeleton>
        </template>
      </li>
    </ul>
    <!-- 弹层 -->
    <div class="layer">
      <h4>{{ currentCategory && currentCategory.id === 'brand' ? '品牌' : '分类' }}推荐
        <small>根据您的购买或浏览记录推荐</small></h4>
      <ul v-if="currentCategory && currentCategory.goods">
        <li v-for="item in currentCategory.goods" :key="item.id">
          <router-link to="/">
            <img :src="item.picture" alt="">
            <div class="info">
              <p class="name ellipsis-2">{{ item.name }}</p>
              <p class="desc ellipsis">{{ item.desc }}</p>
              <p class="price"><i>￥</i>{{ item.price }}</p>
            </div>
          </router-link>
        </li>
      </ul>
      <ul v-if="currentCategory && currentCategory.brands">
        <li class="brand" v-for="item in currentCategory.brands" :key="item.id">
          <router-link to="/">
            <img :src="item.picture" alt="">
            <div class="info">
              <p class="place"><i class="iconfont icon-dingwei"></i>{{ item.place }}</p>
              <p class="name ellipsis-2">{{ item.name }}</p>
              <p class="desc ellipsis">{{ item.desc }}</p>
            </div>
          </router-link>
        </li>
      </ul>
    </div>
  </div>
</template>


<style lang="less" scoped>
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0, 0, 0, 0.8);
  position: relative;
  z-index: 99;
  opacity: 0.4;
  transition: opacity 1s;

  .menu {
    li {
      padding-left: 40px;
      height: 50px;
      line-height: 50px;
      transition: background-color 250ms;

      &:hover, &.active {
        background: @xtxColor;
      }

      a {
        margin-right: 4px;
        color: #fff;

        &:first-child {
          font-size: 16px;
        }
      }
    }
  }

  // 弹出层样式
  .layer {
    width: 990px;
    height: 500px;
    background: rgba(255, 255, 255, 0.8);
    position: absolute;
    left: 250px;
    top: 0;
    display: none;
    padding: 0 15px;

    h4 {
      font-size: 20px;
      font-weight: normal;
      line-height: 80px;

      small {
        font-size: 16px;
        color: #666;
      }
    }

    ul {
      display: flex;
      flex-wrap: wrap;

      li {
        width: 310px;
        height: 120px;
        margin-right: 15px;
        margin-bottom: 15px;
        border: 1px solid #eee;
        border-radius: 4px;
        background: #fff;

        &:nth-child(3n) {
          margin-right: 0;
        }

        a {
          display: flex;
          width: 100%;
          height: 100%;
          align-items: center;
          padding: 10px;

          &:hover {
            background: #e3f9f4;
          }

          img {
            width: 95px;
            height: 95px;
          }

          .info {
            padding-left: 10px;
            line-height: 24px;
            width: 190px;

            .name {
              font-size: 16px;
              color: #666;
            }

            .desc {
              color: #999;
            }

            .price {
              font-size: 22px;
              color: @priceColor;

              i {
                font-size: 16px;
              }
            }
          }
        }
      }

      // 品牌的样式
      li.brand {
        height: 180px;

        a {
          display: flex;
          align-items: flex-start;

          img {
            width: 120px;
            height: 160px;
          }

          .info {
            p {
              margin-top: 8px;
            }

            .place {
              color: #999;
            }
          }
        }
      }
    }
  }

  &:hover {
    opacity: 1;
    .layer {
      display: block;
    }
  }
}

// 骨架动画
.xtx-skeleton {
  animation: fade 1s linear infinite alternate;
}

@keyframes fade {
  from {
    opacity: 0.2;
  }
  to {
    opacity: 1;
  }
}
</style>